Nut-lock.



J. H. HARVEY.

NUT LOOK.

APPLICATION FILED MAR. 21, 1910.

Patented Oct. 4, 1910.

auvemko'io JOSIAH H. HARVEY, OF SGRANI'ON, PENNSYLVANIA.

NUT-LOCK.

Specification of Letters Patent.

.Patented Oct. 4, 1910.

Application 'filerl March 21, 1910. Serial No. 550,607.

To all whom iii-may concern.

Be it known that I, Josnvn H. HARvEY, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Nut- Locks; and 1 do hereby declare the :follow-' info, to be a full, clear, and exaet description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 1

This invention relates to improvements in nut-locks, and more particularly to means by which the nutis looked upon a bolt.

The object in View is the arrangement in a nut lock, of means for looking; a nut or bolt against accidental removal. Another object of the invention is the ar rangement in a nut lock, of means for permitting the free rotation. of the nut when securing the nut in place but preventing a reverse rotation. of the nut. A further object of the invention is the arrangement in a not lock, of a reciprocat- .ing dog; or pawl adapted to engage a groove in a bolt, and an auxiliary dog or pawl for locking thefirst mentioned dog or pawl out of engagement with the bolt.

A still further object of the invention the arrangement in. a pawl, of means adapt ed to be manipulated for looking a nut against rotation in either direction.-

With these and other ol'ijeets in view the in-ventioi'i comprises certain novel construe lions, COZHlJlHRlLlOIIS, and ar'angement of parts as will be hereinafter more fully described and claimed.

In the accompanyingdrawings: Figure 1 is a plan view of an en'ibodiment oi: "the invention. Fig. is a longitudinally vertical section through the structure shown in Fig. 1; Fig. is a view siniilan to Fig, 1, but with the locking dog showin retracted.

Fig. 4: is a detail sectional view through a slightly modified form of the device shown. in Fig. 3. 'l ig. 5 is a top plan view of the dog shown in Fig. 4;. y

In crlmstriieting;- a nut loch en'ibodying the invention. various detail structures may he utiliaed, all. of which embody the same principle, mainly the iirovision oi :1. looking dog for preventing: the reverse rotation of a nut, or the rotation of the nut in either direction. 'lhese locking dogs are slidably arranged in the nut and adapted to mig'ag'e. grooves. arranged lathe bolt, to which the.

a therefor. "aeiigagea bolt sumlar to the preterred strut-.-

nut is secured, and are also adapted to be manually operated for disengaging the dogs from the bolt. i issociated With these respemtivedogs, are pawls or auxiliary locking means adapted to either lock the dogs against the bolt or out of engagement with the bolt. i

In order that the invention may be more (clearly understood, an emhodin'ient of the invention is shown in the accompanying drawings, in which nut l is provided with a pair of apertures 23 and Jet arranged therein, which apertures may be cylindrical or any other desired shape. Arranged in aperture 24 is a dog adapted to operate in a similar manner to dog 5, but provided With a pm 2l3 passing through slot 27 in order to convey motion manually to dog 25 for reeiprocating the same. Arranged in aperture- 231s a locking dog or pawl 28 designed to engage offset portion or notch 29 in dog 25 when do" 25 hasbeen retracted, as shown in Fig. 53. laWl 28 is provided with a pin 30 which extends through slot 31 for permitting movement to be conveyed to pawl 28 for releasing the same. Pin. 3! is rigidly secured to a plate 30 and is adapted to be l'( 'l})l'(7(t2ll.'(f:(l or moved laterally through slot ill or rather along slot. at the same time that never 30 moved. Cover 30 acts a hand hold or grip member for easily inanipulatiug;- pin 30, and also acts as a covertor slot 1-71.. Slot 2? is yn-ovided with a'c'over 2? which is rigidly secured to pin 26 and is designed to operate in a similar manner to cover -10. A spring 32 engages pawl for normally giving the same a tendency to move into uoleh 2! and dog 25 is provided with a spring 2-?) for givinglhedog a. contiuuous tendency to engage the bolt 2 which is provided with suitable slots or notches for receiving lhe same. A plug 34-,p1.e,t'erably threaded, is filled into the end of aperture For holding spring 2-53 in position, and a plug 35 is mounted in aperture 23 for noldinn spring 32 in position.

in Fig. t will be seen a. slightly modified form otlhe invention. in which a nut lis provided with apertures 36 and 37 for rei-eiviu a dog 38 and a locking member 39 [log 32% is adapted to ()TMHtLlZGfiJL lure. hut is relraohwl from such engagement and looked in sin-h a retmetml PUHIlIOH H1 at Hlw'hi'ly dili'orout manner. Dog 3H 1H provid e d with a hollowed out )l'll()ll 'll.), whioh accommodates spring 41,'the sp g. 4'l-nand; hollowed out portion, acting 'siifnlar to. spring 12 and hollowedout portion 11 ofth preferred structure, and ivil no further description. Dog38 is also p ro-' vided with a slot 42 and a notched out pcr-' tion 43 for accommodating pin '44 and stud or.v projection 45 respectively. The locking member 39 is continuously pressed by aspring 46 which is held in-place by a plug 47 and which is positioned for the greater part of its length ina recess provided in member '39. The locking member 39 is provided with a stud or reduced portion for fitting into socket 43, and also a pin 44 which extends through the slot 42 in dog 38, and also through anaperture in plate 48.

I In order that the 111g 45 may be permitted to engage socket 43 a pin 49 is-provided .which passes through a slot 50, and is secured to dog 38 whereby the dog may bemoved against the action of spring 41 until.

socket 43 is above lug 45, whereupon lug 45 Will move upward into the socket under the influence of spring'46. This will positively lock dog 88 in a 'retractedposition. When: ever it is desired to release dog 38. pin 44' is depressed and the dog What I claim is:

1 In a nut lock, the combination with a nut, of a movable dog arranged therein formed with a spring receiving cavity, a spring positioned in said cavity for normally holding'said dog in an outer position,

and spring pressed means for locking said dog 1n an inner position,

2. In a nut lock, the combination with a nut, of a reciprocating dog formed with a longitudinal bore, a spring positioned partly in said bore for holding said" dog in an outer position, and spring pressed means for looking said dog in an inner position.

therefore need} I will move -outward v immediately upon the influence of spring 41.

I the-combination ivvith a lity of: Ways formed v n I 1' ach otli'er of areciprocating. og on said Waya/means for yieldinglyqhelding aniputer position said dog,;a 1.reoip'i ocatiiigg locking member arranged in the other of said Ways, and cush:

ioning means for causing saicl lockinkg member to engage said do'gwhen move to an inner position for looking the saline against operation.

4'. In a nut lock, the combination with a nut, of a reciprocating dog, means forlocking' said dog, a manually operated pin secured to said dog for Withdrawing the dog, and a manually operated pin secured to said first mentioned means for witl' drawing the same and unlocking the dog.

5. In a nut lock, the combination with a nut, of a reciprocating clog, means for normally holding said dog in an outer position, means for causing an inward movement of said dog, a catch for engaging said dog when in an inner position, a spring for normally holding in an inner position said catch, and a manually operated pin for releasing said catch. a

1 6; ,In anut lock, the combination with anut and a notched bolt having notches there in, of a reci rocating dog arranged in said nut and adapted to engage said notches, a

spring for normally holding in an outer posit on said dog, acushioned catch' for holding said dog in an inner position when moved to such position, and a lateral movable pin it'or disengaging said catch. In testimony whereof I aflix my signature in presence of two Witnesses.

JOSIAH H. HARVEY. Witnesses:

J OHN L. FLETCHER,

A. Krronzm. 

